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US 9,751,246 B2Granted
Ejection controller for injection molding machine
AssigneeFanuc Corporation
InventorsShuichi Wakebe, Shinichi Saitou
Life of this patent
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Abstract
An ejection controller for an injection molding machine has a function of interrupting ejection by an ejection device before the ejection is completed, a function of detecting closing of an open safety door surrounding a mold clamping unit of the injection molding machine, and a function of restarting the ejection by the ejection device when the closing of the open safety door is detected while the ejection device is interrupted.
Claims10
An ejection controller for an injection molding machine,
- the injection molding machine comprising:
- a mold clamping unit;
- an injection unit;
- a mold unit;
- an ejection device for releasing a molded article of a resin from the mold unit after the resin injected from the injection unit into the mold unit is molded;
- and
- a cover unit provided at least around the mold clamping unit and comprising a safety door configured to be opened and closed,
- the ejection controller comprising:
- an ejection interruption control unit configured to, in response to position data indicating that the ejection device is at a predetermined ejection interrupting position, interrupt ejection by the ejection device before the ejection is completed;
- a safety door closing detection unit configured to detect closing of the safety door in an open state;
- and
- an ejection restart control unit configured to restart the ejection by the ejection device when the safety door closing detection unit detects the closing of the open safety door while the ejection device is interrupted by the ejection interruption control unit.
9 more elements
An ejection controller for an injection molding machine,
- the injection molding machine comprising:
- a mold clamping unit;
- an injection unit;
- a mold unit;
- an ejection device for releasing a molded article of a resin from the mold unit after the resin injected from the injection unit into the mold unit is molded;
- and
- a cover unit provided at least around the mold clamping unit and comprising a safety door capable of being opened and closed,
- the ejection controller comprising:
- an ejection interruption control unit configured to interrupt ejection by the ejection device before the ejection is completed;
- a safety door closing detection unit configured to detect closing of the safety door in an open state;
- an ejection restart control unit configured to restart the ejection by the ejection device when the safety door closing detection unit detects the closing of the open safety door while the ejection device is interrupted by the ejection interruption control unit;
- and
- an ejection load detection unit configured to detect a value of an ejection load of the ejection device,
- wherein the ejection interruption control unit is configured to interrupt the ejection by the ejection device when the ejection load value detected by the ejection load detection unit exceeds a predetermined first threshold after the ejection by the ejection device is started, and thereafter, the detected ejection load value falls below a predetermined second threshold lower than the first threshold.
11 more elements
Dependencies are inferred from the claim text.